A.谢添
B.谢晋
C.吴贻弓
D.滕文骥
第2题
Usually tube worms live in high-temperature environment.
A.Y
B.N
C.NG
第3题
The bacteria depend on worms for hydrogen sulfide in the symbiotic relationship.
A.Y
B.N
C.NG
第4题
The bacteria depend on worms for hydrogen sulfide in the symbiotic relationship.
A.Y
B.N
C.NG
第5题
Tube worms can't live in high-temperature environment.
A.Y
B.N
C.NG
第6题
Before 1990, no giant tube worms were found in Phoenix.
A.Y
B.N
C.NG
第8题
When a new vent forms, tube worms congregate around it voluntarily.
A.Y
B.N
C.NG
第9题
Silk worms and bees are ______ , while flies and mosquitoes are ______.
A.beneficial insects... pests
B.pests... beneficial insects
C.harmful to people... helpful to people
D.helpful to people... helpful to people too
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